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Another SEMA week is upon us! That means huge announcements from your favorite auto manufacturers. More product innovations from top aftermarket parts companies. Mind-boggling concept vehicles and beautiful show cars. Interactive displays, exhibition racing, vehicle tests, celebrities, and more. SEMA is the  industry’s premier aftermarket trade show. It’s one of the biggest weeks on the

Got questions? We’ve got the answers—the Summit Racing tech department tackles your automotive-related conundrums. This week, we finish helping a reader pick out the right cylinder heads for his small block Chevy engine. We answered the first half of his questions last week; we answer his last five questions now. B.A. Smyrna, GA Q: I am thinking